ARCHIVED VERSION: The Most IMPORTANT Video (part 5 of 8)

I got a number of reports over time that people had trouble loading this video, so I've reposted it at http://www.youtube.com/watch?v=t-X6EpvWWu8 Entire playlist for the lecture: http://www.youtube.com/view_play_list?p=6A1FD147A45EF50D [Thanks for the catch! Would the guy who caught this on 8-26-08 resend his message to my account? I'm so groggy I deleted the message while I was actually trying to cut and paste it into my souvenier file. Cheers!] I'm keeping this version up to preserve the discussions in the comments. Part 5 of Dr. Albert A. Bartlett's presentation on "Arithmetic, Population, and Energy."